21730816

素因数分解:

$2^9\times {\mathrm{42443}}^1$

素因数の和:42461

約数の個数: 20

約数和(自身を含む): 43420212

約数和(自身を除く): 21689396

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 42443, 84886, 169772, 339544, 679088, 1358176, 2716352, 5432704, 10865408, 21730816]

約数ペア:

[(1, 21730816), (2, 10865408), (4, 5432704), (8, 2716352), (16, 1358176), (32, 679088), (64, 339544), (128, 169772), (256, 84886), (512, 42443)]